Hawaii's Legend of the Menehune

The worked facing stones of Kikiaola ditch, purportedly created by the the Menehune, sometimes known as Menehune Ditch. Photo by Joseph Patrick Gray, licensed under Creative Commons Attribution-Share Alike 3.0 Unported

The story of the Menehune is one that's been handed down through oral history for generations. But can the roots of this mythological group of people be traced to real-world events?